Safety pressure relief device of hydrogen fluoride reacting furnace

Abstract

The utility model relates to the technical field of pressure relief devices, and discloses a hydrogen fluoride reacting furnace safety pressure relief device which comprises a pressure relief pipe, a sliding column is slidably connected to the inner wall of one end of the pressure relief pipe, one end of the sliding column extends to the outside of the pressure relief pipe, and a sliding rod is slidably connected to the inner wall of the sliding column. A spring is fixedly connected between the sliding column and the side wall of the piston and movably arranged on the outer wall of the sliding rod in a sleeving mode, and a limiting assembly is arranged between the pressure relief pipe and the sliding column and clamps the sliding column. Comprising a clamping groove, an elastic clamping block, an extrusion block and the like, a user can rotate a rotary drum and flexibly adjust the positions of a sliding column and a piston according to actual requirements, so that the starting air pressure value of the pressure relief device is changed, and compared with an existing device, it is avoided that when the pressure does not meet the optimal reaction requirement, pressure relief is too early to affect the reaction process, and production efficiency is reduced; and the risk that the pressure is far beyond the safety range and is not released in time is prevented, and the production safety and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure relief devices, specifically a safety pressure relief device for a hydrogen fluoride reactor. Background Technology

[0002] The safety pressure relief device for a hydrogen fluoride reactor is a key piece of equipment for ensuring the safe operation of the reactor. During the hydrogen fluoride production process, the pressure inside the reactor fluctuates due to changes in reaction conditions. This device automatically opens to relieve pressure when the pressure inside the furnace exceeds a safe threshold, preventing serious safety accidents such as explosions caused by excessive pressure. It is of great significance for maintaining a safe production environment and protecting the lives of personnel and the integrity of equipment.

[0003] Application No. 202121634037.1 discloses a pressure relief device for a safety valve. By blocking the flow of water from the outlet, the impact force of the water is reduced, turning high-pressure water into low-pressure or normal-pressure water, thus relieving pressure and preventing the discharged water from harming personnel or damaging other components. At the same time, when the pressure relief device is not working, the baffle plate also prevents external debris from entering the safety valve.

[0004] The above-mentioned device is not convenient to adjust the required gas pressure according to the actual needs of the user. In actual production, different process stages, raw material ratios and other factors have different requirements for the gas pressure in the reactor. If the gas pressure value of the pressure relief device cannot be flexibly adjusted, it may lead to premature pressure relief before the pressure reaches the optimal reaction requirement, which will affect the reaction process and reduce production efficiency. Therefore, we have proposed a safe pressure relief device for hydrogen fluoride reactors. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a safety pressure relief device for a hydrogen fluoride reactor. This solves the problem that the aforementioned devices are not convenient for adjusting the required gas pressure according to the actual needs of the user. In actual production, different process stages, raw material ratios, and other factors have different requirements for the gas pressure inside the reactor. If the gas pressure value at which the pressure relief device is activated cannot be flexibly adjusted, it may lead to premature pressure relief before the optimal reaction requirement is reached, affecting the reaction process and reducing production efficiency.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a safety pressure relief device for a hydrogen fluoride reactor, comprising a pressure relief pipe, a sliding column slidably connected to the inner wall of one end of the pressure relief pipe, one end of the sliding column extending to the outside of the pressure relief pipe, a sliding rod slidably connected to the inner wall of the sliding column, one end of the sliding rod extending to the outside of the sliding column, pressure relief ports provided on both sides of the pressure relief pipe, a piston slidably connected to the inner wall of one end of the pressure relief pipe, the side wall of the piston being fixedly connected to the side wall of the sliding rod, a spring being fixedly connected between the sliding column and the side wall of the piston, the spring being movably sleeved on the outer wall of the sliding rod, and a limiting component provided between the pressure relief pipe and the sliding column, the limiting component clamping the sliding column.

[0007] Preferably, a limit ring is fixedly connected to the outer wall of the pressure relief pipe sidewall.

[0008] Preferably, a rotating cylinder is rotatably connected to the outer wall of the limiting ring.

[0009] Preferably, a limiting rod is fixedly connected to the side wall of the pressure relief pipe, and two sets of limiting rods are provided, which are symmetrically arranged on both sides of the pressure relief pipe.

[0010] Preferably, the limiting component includes a slot, an elastic block, and a pressing block. The elastic block is fixedly connected to the side wall of the pressure relief pipe, and there are several elastic blocks. The slot is opened on the side wall of the sliding column, and there are several slots arranged in a line. The elastic block matches the slot. The outer wall of the pressing block is disposed between the elastic block and the rotating cylinder. The outer wall of the pressing block is threadedly connected to the inner wall of the rotating cylinder. The outer wall of the limiting rod is slidably connected to the inner wall of the pressing block.

[0011] Preferably, a rupture disc is fixedly connected to the inner wall of the pressure relief pipe.

[0012] Preferably, a flange is fixedly sleeved on the outer wall of the pressure relief pipe.

[0013] Compared with the prior art, this utility model provides a safety pressure relief device for a hydrogen fluoride reactor, which has the following advantages:

[0014] 1. This hydrogen fluoride reactor safety pressure relief device, through a unique limiting component design including a slot, elastic block, and compression block, allows the user to rotate the drum according to actual needs and flexibly adjust the position of the sliding column and piston, thereby changing the gas pressure value at which the pressure relief device is activated. Compared with existing devices, it avoids premature pressure relief when the pressure has not reached the optimal reaction requirements, which would affect the reaction process and reduce production efficiency. It also prevents the risk of pressure far exceeding the safe range without timely pressure relief, thus improving production safety and efficiency.

[0015] 2. The safety pressure relief device for the hydrogen fluoride reactor can automatically relieve pressure when the pressure inside the hydrogen fluoride reactor exceeds the safety threshold through the coordinated action of components such as piston, sliding rod, spring and pressure relief port. This effectively prevents serious safety accidents such as explosions caused by excessive pressure, and ensures the safety of the production environment, the lives of personnel and the integrity of equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 for Figure 2 A magnified view of part A in the diagram.

[0019] In the diagram: 1. Pressure relief pipe; 2. Flange; 3. Rupture disc; 4. Pressure relief port; 5. Sliding column; 6. Sliding rod; 7. Piston; 8. Spring; 9. Rotary cylinder; 10. Limiting ring; 11. Limiting rod; 12. Elastic locking block; 13. Compression block; 14. Locking groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3A safety pressure relief device for a hydrogen fluoride reactor includes a pressure relief pipe 1, a sliding column 5 slidably connected to the inner wall of one end of the pressure relief pipe 1, one end of the sliding column 5 extending to the outside of the pressure relief pipe 1, a sliding rod 6 slidably connected to the inner wall of the sliding column 5, one end of the sliding rod 6 extending to the outside of the sliding column 5, pressure relief ports 4 on both sides of the pressure relief pipe 1, a piston 7 slidably connected to the inner wall of one end of the pressure relief pipe 1, the side wall of the piston 7 being fixedly connected to the side wall of the sliding rod 6, a spring 8 being fixedly connected between the sliding column 5 and the side wall of the piston 7, the spring 8 being movably sleeved on the outer wall of the sliding rod 6, and a limiting component being provided between the pressure relief pipe 1 and the sliding column 5 to lock the sliding column 5; when the pressure inside the reactor is normal, the piston 7 is in the initial position under the action of the spring 8, closing the pressure relief port 4; when the pressure increases, the gas pressure pushes the piston 7, causing the sliding rod 6 to slide inside the sliding column 5, compressing the spring 8, until the pressure relief port 4 opens to release pressure. When adjusting the pressure, rotating the drum 9 causes the extrusion block 13 to move through the threaded connection between the extrusion block 13 and the drum 9, as well as the limiting rod 11. This causes the extrusion block 13 to move, the elastic locking block 12 to disengage from the locking groove 14, and pulls the sliding column 5 to change the position of the piston 7. Then, rotating the drum 9 in the opposite direction fixes the sliding column 5, changing the initial compression of the spring 8, thereby achieving pressure relief and adjustment. When the pressure in the hydrogen fluoride reactor exceeds the safety threshold, the device can automatically relieve pressure through the coordinated action of components such as the piston 7, sliding rod 6, spring 8, and pressure relief port 4, effectively preventing serious safety accidents such as explosions caused by excessive pressure, and ensuring the safety of the production environment, the lives of personnel, and the integrity of equipment.

[0022] A limiting ring 10 is fixedly connected to the outer wall of the pressure relief pipe 1; it provides support and positioning for the rotating drum 9, which can rotate smoothly around the outer wall of the limiting ring 10. During pressure adjustment, it ensures the stability of the rotation of the rotating drum 9 and enables the extrusion block 13 to move accurately.

[0023] A rotating cylinder 9 is rotatably connected to the outer wall of the limiting ring 10. When adjusting the pressure, the user rotates the rotating cylinder 9. Under the support of the limiting ring 10, the rotating cylinder 9 makes a circular motion around its outer wall. Through the threaded connection with the extrusion block 13, the rotation is converted into the linear movement of the extrusion block 13.

[0024] A limiting rod 11 is fixedly connected to the side wall of the pressure relief pipe 1. There are two sets of limiting rods 11, which are symmetrically arranged on both sides of the pressure relief pipe 1. When the rotating drum 9 rotates, the inner wall of the extrusion block 13 is slidably connected to the outer wall of the limiting rod 11. The limiting rod 11 restricts the extrusion block 13 to move only along its axial direction, ensuring that the extrusion block 13 moves in a predetermined direction when the rotating drum 9 rotates, and accurately acts on the elastic locking block 12.

[0025] The limiting component includes a slot 14, an elastic block 12, and a pressing block 13. The elastic block 12 is fixedly connected to the side wall of the pressure relief pipe 1, and there are several elastic blocks 12. The slot 14 is opened on the side wall of the sliding column 5, and there are several slots 14 arranged in a line. The elastic block 12 matches the slot 14. The outer wall of the pressing block 13 is set between the elastic block 12 and the rotating cylinder 9. The outer wall of the pressing block 13 is threadedly connected to the inner wall of the rotating cylinder 9. The outer wall of the limiting rod 11 is slidably connected to the inner wall of the pressing block 13. Under normal conditions, the elastic block 12 is pressed into the slot 14 of the sliding column 5 by the pressing block 13, fixing the position of the sliding column 5. When adjusting the pressure, rotating the drum 9 moves the squeezing block 13, releasing the squeezing of the elastic locking block 12. The elastic locking block 12 resets and disengages from the slot 14. At this time, the sliding column 5 can be moved. After adjustment, rotating the drum 9 in the opposite direction, the squeezing block 13 squeezes the elastic locking block 12 again, causing it to lock into the new slot 14, fixing the new position of the sliding column 5. Including the slot 14, elastic locking block 12, squeezing block 13, etc., the user can rotate the drum 9 according to actual needs to flexibly adjust the position of the sliding column 5 and piston 7, thereby changing the air pressure value at which the pressure relief device is activated. Compared with the existing device, it avoids premature pressure relief when the pressure has not reached the optimal reaction requirement, which affects the reaction process and reduces production efficiency. It also prevents the risk of pressure far exceeding the safe range without timely pressure relief, thus improving the safety and efficiency of production.

[0026] A rupture disc 3 is fixedly connected to the inner wall of the pressure relief pipe 1. When the pressure inside the reactor rises abnormally and rapidly, and the existing pressure relief components cannot relieve the pressure in a timely and effective manner, the pressure acts on the rupture disc 3. When the pressure exceeds the withstand limit of the rupture disc 3, the rupture disc 3 ruptures, quickly expelling the high-pressure gas inside the furnace for emergency pressure relief.

[0027] The outer wall of the pressure relief pipe 1 is fixedly fitted with a flange 2; during the installation of the device, the flange 2 is connected to the corresponding flanges of the reactor and other related pipelines by means of bolts and other connecting parts, so as to realize the stable connection between the device and the entire production system and ensure smooth pressure transmission.

[0028] Structural Description: Pressure Relief Pipe 1: As the main pipeline of the device, one end is connected to the hydrogen fluoride reactor, and the other end extends to a safe area for pressure relief. It is usually made of high-strength, corrosion-resistant metal material, such as special alloy steel, to withstand the high pressure in the reactor and the corrosiveness of hydrogen fluoride. Its interior provides a channel for gas flow, and the gas is discharged through the pressure relief ports 4 set on both sides. At the same time, it provides installation space for components such as piston 7 and sliding column 5. It is the core carrier of the entire pressure relief device.

[0029] Flange 2: It is fixedly sleeved on the outer wall of the pressure relief pipe 1. It is mostly made of metal, such as carbon steel, and is treated with anti-corrosion. It is connected to the corresponding flange of the reactor and other related pipelines through bolts and other connecting parts to achieve a stable assembly of the device and the production system. The existence of the flange ensures tight connection, prevents pressure leakage, ensures smooth pressure transmission of the entire system, and facilitates the installation, disassembly and maintenance of the device.

[0030] Rupture disc 3: Installed on the inner wall of pressure relief pipe 1, it is generally made of metal foil or composite material with specific thickness and strength. Within the normal operating pressure range, the rupture disc remains intact and does not affect the normal pressure relief process of the device. However, when the pressure inside the reactor rises abnormally and rapidly, exceeding the coping capacity of the normal pressure relief components, the pressure acts on the rupture disc 3. When the pressure exceeds its withstand limit, the rupture disc ruptures, rapidly expelling the high-pressure gas inside the furnace and providing emergency pressure relief. It is a key safety component for dealing with extreme pressure situations.

[0031] Pressure relief port 4: Located on both sides of pressure relief pipe 1, it serves as a channel for gas discharge. Its size and number are determined based on the design pressure and pressure relief requirements of the reactor. When the pressure inside the reactor pushes piston 7 to a certain position, pressure relief port 4 is opened, allowing excess gas inside the furnace to be discharged, thus achieving the pressure relief function and regulating the pressure inside the reactor to a safe range.

[0032] Sliding column 5: One end is slidably connected to the inner wall of one end of the pressure relief pipe 1, and part of it extends to the outside of the pressure relief pipe 1. It is made of wear-resistant and corrosion-resistant metal material. It is connected to the piston 7 through the sliding rod 6. During the pressure regulation process, the initial position of the piston 7 can be changed by pulling the sliding column 5, thereby adjusting the pressure relief threshold of the device. At the same time, it provides support for the spring 8 and is an important movable part in the pressure regulation structure.

[0033] Sliding rod 6: One end is slidably connected to the inner wall of sliding column 5, and the other end is fixedly connected to the side wall of piston 7. The material is similar to that of sliding column 5, and it has good sliding performance and strength. When the pressure inside the reactor changes, piston 7 pushes sliding rod 6 to slide inside sliding column 5, transmitting the pressure change, driving piston 7 to move, and controlling the opening and closing of pressure relief port 4. It plays a connecting role in pressure transmission and pressure relief operation.

[0034] Piston 7: Located inside the pressure relief pipe 1, its side wall is fixedly connected to the sliding rod 6. It is usually made of a material with good sealing performance and corrosion resistance, such as a rubber and metal composite material. When the reactor pressure is normal, piston 7 closes the pressure relief port 4 under the action of spring 8; when the pressure increases, the air pressure pushes piston 7 to move, opening the pressure relief port 4 to release pressure. It is a key component that directly senses pressure changes and controls the pressure relief action.

[0035] Spring 8: It is movably sleeved on the outer wall of the sliding rod 6, with its two ends connected to the sliding column 5 and the side wall of the piston 7, respectively. It is made of high-elasticity, fatigue-resistant spring steel. Under normal conditions, the elastic force of spring 8 keeps the piston 7 in the position of closing the pressure relief port 4. When the pressure increases and the piston 7 moves, spring 8 is compressed, which plays a role in buffering the pressure and regulating the pressure relief speed, ensuring a smooth pressure relief process.

[0036] Rotary drum 9: Its outer wall is rotatably connected to the limiting ring 10 and is installed on the outside of the pressure relief pipe 1. It is generally made of metal and has a certain strength and rotational flexibility. During pressure adjustment, the user rotates the rotary drum 9, which is converted into linear movement of the pressing block 13 through the threaded connection with the pressing block 13. This controls the engagement of the elastic locking block 12 and the locking groove 14, thereby adjusting the position of the sliding column 5. It is the actuator for pressure adjustment operation.

[0037] Limiting ring 10: Fixed to the outer wall of pressure relief pipe 1, providing support and positioning for rotating drum 9; mostly made of metal, it is firmly connected to pressure relief pipe 1. It ensures the stability of rotating drum 9 during rotation, allowing rotating drum 9 to rotate smoothly around its outer wall, ensuring that extrusion block 13 can move accurately, and is the basic support component for the stable operation of pressure regulating structure.

[0038] Limiting rod 11: Symmetrically arranged on both sides of the pressure relief pipe 1 and fixedly connected to the side wall of the pressure relief pipe 1; made of metal, with high strength and straightness; when the rotating drum 9 rotates, the inner wall of the extrusion block 13 is slidably connected to the outer wall of the limiting rod 11, and the limiting rod 11 restricts the extrusion block 13 to move only along its axial direction, ensuring that the extrusion block 13 moves in a predetermined direction when the rotating drum 9 rotates, accurately acting on the elastic locking block 12, and ensuring that the pressure regulation process is stable and reliable.

[0039] Elastic locking block 12: Fixed to the side wall of pressure relief pipe 1, in several quantities; made of metal or plastic with good elasticity and wear resistance; under normal conditions, the elastic locking block 12 is pressed into the slot 14 of the sliding column 5 by the squeezing block 13, fixing the position of the sliding column 5; when adjusting the pressure, the squeezing block 13 moves, the elastic locking block 12 resets and disengages from the slot 14, allowing the sliding column 5 to move, and after adjustment, it is locked into the new slot 14 again to fix the new position of the sliding column 5. It is a key component for limiting and adjusting the position of the sliding column 5.

[0040] The squeezing block 13 is located between the elastic locking block 12 and the rotating cylinder 9. Its inner wall is slidably connected to the outer wall of the limiting rod 11, and its outer wall is threadedly connected to the inner wall of the rotating cylinder 9. It is usually made of metal and has a certain strength and wear resistance. When the rotating cylinder 9 rotates, the squeezing block 13 moves axially under the limit of the limiting rod 11, squeezing or releasing the elastic locking block 12, thereby controlling the position of the sliding column 5 and playing a transmission and control role in the pressure regulation mechanism.

[0041] Slots 14: are formed on the side wall of the sliding column 5, are distributed in a line, and are several in number; they match the elastic blocks 12, and are integrally formed from the material of the sliding column 5 or are processed later; when the elastic blocks 12 are inserted into the slots 14, the position of the sliding column 5 is fixed. The slots 14 at different positions cooperate with the elastic blocks 12 to fix the sliding column 5 at different positions, thereby adjusting the pressure relief threshold of the device.

[0042] Instructions for use

[0043] During normal operation of the hydrogen fluoride reactor, the device is in standby mode. The piston 7 inside the pressure relief pipe 1 remains in a relatively stable position under the action of the spring 8, and the rupture disc 3 remains intact, ensuring normal pressure transmission within the reactor and preventing leakage. When the pressure inside the hydrogen fluoride reactor becomes too high, the internal gas pressure pushes the piston 7, which in turn drives the sliding rod 6, which is fixedly connected to it, to slide along the inner wall of the sliding column 5. During this process, the spring 8 is compressed. When the piston 7 moves a certain distance, exposing the pressure relief port 4, the excess gas pressure is discharged from the pressure relief port 4, thus relieving pressure in the reactor and preventing excessive pressure from causing danger. When it is necessary to adjust the pressure in the pressure relief pipe 1, firstly... First, rotate the drum 9. The drum 9 rotates on the outer wall of the limiting ring 10. Under the limiting action of the limiting rod 11, since the outer wall of the extrusion block 13 is threadedly connected to the inner wall of the drum 9, the extrusion block 13 will move to one side when the drum 9 rotates. The movement of the extrusion block 13 causes the elastic locking block 12 to lose its extrusion. The elastic locking block 12 resets and leaves the slot 14. At this time, the sliding column 5 can be pulled. The sliding column 5 slides out of the pressure relief pipe 1, thereby driving the piston 7 to move. When the piston 7 moves to the appropriate position, rotate the drum 9 again to make the extrusion block 13 move in the opposite direction to extrude the elastic locking block 12, so that it is locked into the slot 14 in the new position, thus completing the limiting of the sliding column 5 and thereby realizing the adjustment of the pressure.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety pressure relief device for a hydrogen fluoride reactor, comprising a pressure relief pipe (1), wherein a sliding column (5) is slidably connected to the inner wall of one end of the pressure relief pipe (1), one end of the sliding column (5) extends to the outside of the pressure relief pipe (1), and a sliding rod (6) is slidably connected to the inner wall of the sliding column (5), one end of the sliding rod (6) extends to the outside of the sliding column (5), characterized in that, Also includes: The pressure relief pipe (1) has pressure relief ports (4) on both sides. A piston (7) is slidably connected to the inner wall of one end of the pressure relief pipe (1). The side wall of the piston (7) is fixedly connected to the side wall of the sliding rod (6). A spring (8) is fixedly connected between the sliding column (5) and the side wall of the piston (7). The spring (8) is movably sleeved on the outer wall of the sliding rod (6). A limiting component is provided between the pressure relief pipe (1) and the sliding column (5). The limiting component clamps the sliding column (5).

2. The safety pressure relief device for a hydrogen fluoride reactor according to claim 1, characterized in that: The pressure relief pipe (1) is fixedly connected to the outer wall of the side wall with a limit ring (10).

3. The safety pressure relief device for a hydrogen fluoride reactor according to claim 2, characterized in that: The outer wall of the limiting ring (10) is rotatably connected to a rotating cylinder (9).

4. The safety pressure relief device for a hydrogen fluoride reactor according to claim 1, characterized in that: The pressure relief pipe (1) is fixedly connected to a limiting rod (11) on its side wall. There are two sets of the limiting rods (11), which are symmetrically arranged on both sides of the pressure relief pipe (1).

5. A safety pressure relief device for a hydrogen fluoride reactor according to claim 4, characterized in that: The limiting component includes a slot (14), an elastic block (12), and a pressing block (13). The elastic block (12) is fixedly connected to the side wall of the pressure relief pipe (1). There are several elastic blocks (12). The slot (14) is opened on the side wall of the sliding column (5). There are several slots (14) and they are arranged in a line. The elastic block (12) matches the slot (14). The outer wall of the pressing block (13) is set between the elastic block (12) and the rotating cylinder (9). The outer wall of the pressing block (13) is threadedly connected to the inner wall of the rotating cylinder (9). The outer wall of the limiting rod (11) is slidably connected to the inner wall of the pressing block (13).

6. The safety pressure relief device for a hydrogen fluoride reactor according to claim 1, characterized in that: A rupture disc (3) is fixedly connected to the inner wall of the pressure relief pipe (1).

7. The safety pressure relief device for a hydrogen fluoride reactor according to claim 1, characterized in that: The outer wall of the pressure relief pipe (1) is fixedly fitted with a flange (2).

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